INTRODUCTION
GPS-18x18 PCB Module Antenna
GPS Antenna Module Specification
1. Explanation of Part Number GPS-PCB-18 x18 x7 mm
2. Application:For antenna units used with or in automobile ( 50 Ohms impedance ).
3. Appearance:Antenna Unit Dimensions 17.90x17.90x 6.95mm Weight 6.35±1g (typ)
4. Operating Condition: Temperature -40 to +90 ℃ Humidity 10 to 95％ RH
5. Storage Condition: Temperature -40 to +90 ℃ Humidity 10 to 95％ RH
6. Electrical Specification:
˙All values are defined at 25±15℃,65 ± 20％RH , power handling 1 u watt ,˙airpressure 960±100 HPA unless noted. ˙Patch characteristics are measured with 50x50 mm ground plane in ananechoic chamber.
6-1) Patch
Characteristics Specification
Center Frequency 1575.42±1.023 MHz (when covered with a radome and measured by LNA ground plane)
Bandwidth(10dB return loss) 5 MHz min @S11≦-10dB
Gain at Zenith 1 dBic typ
Gain at 10°elevation -7 dBic min
Polarization R.H.C.P
Axial Ratio 3 dB typ
6-2) Filter / LNA
Characteristics Specification
Center Frequency 1575.42±1.023 MHz
Gain 27 dB typ
Noise Figure 1.5 dB typ
Output V.S.W.R 2.0 max
Voltage 2.3~5.5 V
Current 2.5 V：6.6 mA Typical
3 V：8.6 mA Typical
4 V：12.6 mA Typical
5 V：16 mA Typical
